I tested a kernel without the following commits from https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1728739 and I was able to mount the CephFS filesystem successfully:
http://kernel.ubuntu.com/git/ubuntu/ubuntu-xenial.git/commit/?id=f14ca6ac3b198f30ee138f02c3c7d380d165736e
http://kernel.ubuntu.com/git/ubuntu/ubuntu-xenial.git/commit/?id=09ade67fc6224440719a94e8c8add556eb036437
http://kernel.ubuntu.com/git/ubuntu/ubuntu-xenial.git/commit/?id=c043f509409e380281403f66c54794efbd5d0f02
http://kernel.ubuntu.com/git/ubuntu/ubuntu-xenial.git/commit/?id=74771960c7794994fd9067cdd8df0725b6ce75f6
http://kernel.ubuntu.com/git/ubuntu/ubuntu-xenial.git/commit/?id=5a03f3043cb617cf2cf5ec9cbd0685d0e86e8b0e
http://kernel.ubuntu.com/git/ubuntu/ubuntu-xenial.git/commit/?id=75ee940e71ed7841958cace371a5c79076a0378c
I spoke to the kernel team and their plan is to revert and re-upload (likely next week) to restore functionality.
I tested a kernel without the following commits from https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/1728739 and I was able to mount the CephFS filesystem successfully:
http:// kernel. ubuntu. com/git/ ubuntu/ ubuntu- xenial. git/commit/ ?id=f14ca6ac3b1 98f30ee138f02c3 c7d380d165736e
http:// kernel. ubuntu. com/git/ ubuntu/ ubuntu- xenial. git/commit/ ?id=09ade67fc62 24440719a94e8c8 add556eb036437
http:// kernel. ubuntu. com/git/ ubuntu/ ubuntu- xenial. git/commit/ ?id=c043f509409 e380281403f66c5 4794efbd5d0f02
http:// kernel. ubuntu. com/git/ ubuntu/ ubuntu- xenial. git/commit/ ?id=74771960c77 94994fd9067cdd8 df0725b6ce75f6
http:// kernel. ubuntu. com/git/ ubuntu/ ubuntu- xenial. git/commit/ ?id=5a03f3043cb 617cf2cf5ec9cbd 0685d0e86e8b0e
http:// kernel. ubuntu. com/git/ ubuntu/ ubuntu- xenial. git/commit/ ?id=75ee940e71e d7841958cace371 a5c79076a0378c
I spoke to the kernel team and their plan is to revert and re-upload (likely next week) to restore functionality.